diff --git a/src/CollaborationSession/collaborationsession.schema.ts b/src/CollaborationSession/collaborationsession.schema.ts
index 361012e..9623831 100644
--- a/src/CollaborationSession/collaborationsession.schema.ts
+++ b/src/CollaborationSession/collaborationsession.schema.ts
@@ -30,6 +30,9 @@ export class CollaborationSessionSchema extends PothosSchema {
         chatRoom: t.relation('chatRoom', {
           description: 'The chat room.',
         }),
+        collaboratorsIds: t.exposeStringList('collaboratorsIds', {
+          description: 'The IDs of the collaborators.',
+        }),
         meetingRoom: t.relation('meetingRoom', {
           description: 'The meeting room.',
         }),